i had a 20 for sometime now... dual booting 98 and 2k. I normaly fill that in just a few weeks. I got a laptop with 30 gig only 3 months ago and it only has 5 free. My micron only has a 8 but i'm lucky if there is any space. I had 15 gigs on my bro comp So i just went and got a 80 for my desktop.